Received mine this morning (Netherlands). Nice little piece of kit. Although the letter tells you to attempt to break it, I'm not sure that's a good idea, I feel like I could probably bend the hinge enough by hand to really mess up the mechanism!
Better late than never. Thanks for pulling through guys.
Thank you @Bigtimespaghetti for your kind feedback - indeed, we initially designed container in that manner that you could split it into two parts - mutli-sig.(*)
Your sentence is always protected by two independent locks, two pawls and racks. Once filled with letter tiles, and closed - Cryptosteel becomes "solid as" a homogeneus steel bar.
*(This depends of the types of private keys you are using. This feature is not yet finished, in development.)